The battle between ham-and-pineapple lovers and haters has even sparked a not-entirely-serious diplomatic dispute. In 2017, the president of Iceland, Guðni Thorlacius Jóhannesson, told an audience of school children that he was so fundamentally opposed to pineapple on pizza that he would ban it in his country if he could. He even went on to issue a statement on Facebook clarifying his position on pineapples in general, and their specific presence on pizza.